arduino串口分割字符串

String comdata = "";
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println();
  Serial.println();
  Serial.println();
}

void loop() {
  // put your main code here, to run repeatedly:
  SerialEvent();
}

void SerialEvent()
{
  while (Serial.available() > 0)  
    {
        comdata += char(Serial.read());
        delay(2);
    }
    
    if (comdata.length() > 0)
    {       
        int pos = 0;
        int spilt = 0;        
        String str[8];
        int num[8];
        for(int i=0;i<comdata.length();i++)
        {
            if(comdata[i] != ',')//逗號爲分隔符
            {
              str[pos] += comdata[i];                                   
            }
            else
            {
              pos++;
            }
        }
        
        for(int i=0;i<8;i++)
        {
          num[i] = str[i].toInt();
          //Serial.println(str[i]); 
          //Serial.println(num[i]); 
        }
        
      //
      //將str[i]和num[i]傳送到其他函數去處理
      //


      //清空字符串
        comdata = "";
    }
}